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Finding the Fourth Proportional to 52,265.60, 78,375.72 and 18,974.60

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Solution

The fourth proportional to 52,265.60, 78,375.72 and 18,974.60 is: 28,453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,265.60 : 78,375.72 = 18,974.60 : x
  2. Step 2: Convert to fraction form
    52,265.60/78,375.72 = 18,974.60/x
  3. Step 3: Cross multiply
    52,265.60x = 78,375.72 × 18,974.60
  4. Step 4: Simplify right side
    52,265.60x = 1,487,147,936.71
  5. Step 5: Solve for x
    x = 1,487,147,936.71/52,265.60
  6. Step 6: Final answer
    x = 28,453.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.